(19)

(11)

EP 1 138 180 A1

(12)

(43) Date of publication: 04.10.2001 Bulletin 2001/40 (21) Application number: 99962969.4 (22) Date of filing: 02.12.1999

(51) International Patent Classification (IPC)7: H05K 1/02, H05K 1/11, H05K 1/14, H05K 7/14 (86) International application number: PCT/US9928/488 (87) International publication number: WO 0033/624 (08.06.2000 Gazette 2000/23)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 02.12.1998 US 204118 (71) Applicant: TERADYNE, INC. Boston, Massachusetts 02118 (US)	(72) Inventors: COHEN, Thomas, S. New Boston, NH 03070 (US) GAILUS, Mark, W. Somerville, MA 02143 (US) STOKOE, Philip, P. Attleboro, MA 02703 (US) (74) Representative: Luckhurst, Anthony Henry William  MARKS & CLERK,57-60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)